Detachable chain hook



Patented Apr. 3, 1923.

UNITED STATES PATENT OFFEE.

JOHN G. RIEFF, OF LONDON, WISGONSIIN'.

DETACIEIABLE' Application filed J'une 26,

T0 all whom z't mwy concem:

Be it known that I, JOHN G. RIEFF', a citizen 01 the United States, and. resident of London, in the c0unty 0f Dame and State 0f "Wisconsin, have invented certa-in neW anal useful Improvements in Detachab-le Chain I-Iooks; and I d'0 hereby declare that the fol- 10W111g' is a fu11, clear, and exact description thereof.

The invention re1ates to a detachable chain hook f01 connecting together the ends 0f a chain, the device being used especially 0n anti-skid chains. v

A primary object 0f the invention isthe provision of a hoo-k which may be readily attached 01' defiached fr0m the chain links, and which, when in position, is securely locked against accidental removal.

More Specifically, the object of the inventi0n is the provision 0f a h00k for the purpose described, with a locking 100p in such manner that the chain may be inserted 01 removed only by drawing the ends of the links to be connected thru the 100pand extending one of them over an outwardly directed finger 0n the hook.

WiC-h the above and other 0bjects in view which Will appear s the description proceeds, the invention resides in the novel 00mstruction, combination and arrangement 0f parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein discI-0sed inVenti0n may be made as come within the sc0pe 0f the claims.

In the accompanying drawing, is illustrated one complete example of the physical embodirnent of the present invention comstructed acc0rding t0 the best mode so far devised f0r the practical application 0f t-he principles thereof, in which:

The figure is a p1an, bringing 01113 the re- 1ation between the hook and the ends 0-f a chain, the hook being shown in locke-d position.

The device is useful especially in connec tion with asolid rubber tire, but may be applied t0 a. pneumatic tire and, in fact, may be used f0r any 'purpose where the ends 0f a chain are united. The chain is passed around the t ire and rim, 0r the other plaj epts, and of the links 10 the GHAIN IHOOK.

1922. Serial N0. 571,096.

hook is passed. The hook is made 0f comparatively heavy material and c0nsists 01 a, U shaped ortion 11, one of the arms of Whi0h is curvecl laterally t0 f0rm an eye 12, the other arm being deflected t0 f0rm a h00k 13.. An elongated closed 100p 14 is received in eye 12 so that the 100p and hook have three relative pivotal movements. In securing the chain in positi0n, the links 15 0f one end are extended thru the 100p 14, and one 01 them is threa led 0ver finger 13. This is preferably the end 1ink 0f the chain, but any 1ink rnay be used, depending on the size of the objec-t enveloped by the chain. The adjustment 0f the chain may be varied also by extending the hook thru a 10-0p 10, more 01 Iess remotely positioned with respect t0 the nearer end of the chain.

Tension 011 the chain has 110 tendency to release it f101n ehe 11001;, as such force acts t0 draw the end link 15 downwardly thru the 100p 14. T0 release the chai11, the end 1ink 15 need merely be drawn over the finger 13 and slipped thru 100p 14:. 'Ihis does n0t necessitate having much s1aek in Ehe chain, so that the device is adapted t0 effect convenient release and 21t the same time maintalin the chain snng1y in position. enveloping the object. There can be 110 re- ]ease 0f the chain otherwise than by the 1e moval 01 an end link 15 from finger 13. As this necessitates a considerable movement of the end 100p, it precludes all possibility 0f accidental release.

I c1aim:

1. The combination 0f a chain, a h00k ex.-

tending thru 0ne 0f the links adjacent there- 0f, a c10sed 100p piv0tally secured t0 said hook, the 0ther end 0f said chain extendinp; thru said 100p, and afinger 011 said h00k extending thru a 1ink 0n said 1atter enr1 01 the chain.

2. The combination 0f a chain, a h0ok extending thru a 1ink adjaceric one end there 0f, an elongated 100p piv0tally secmed t0 one end 0f said hook, the 0ther end 015 said chain extending; thru said 100p, zmfl a lateral1y directed finger 0n said hook extendinp; thru alink 0n the 1atter end 0f said chain.

In testimony that I c1aim the foregoing I have hereunt0 set .my band at London, In the county of Dame, and State of Wisconsin.

JOHN G. RIEFF. 

